The event is widely considered to be one of Bandai's worst idea: few people care for those characters, either theme-wise, or ability (they are all relatively weak; only Kid Sabo has some niche utility). It is not recommended you spend any gems for the pulls, unless you really want them for your collection. Game-wise, they have very little utility.

Past event period:

Premiered: Aug.4 2015 (19:00) - Aug.11 2015 (18:59) PST

(during the premier event there was also a rate up for Straw Hat V1 5★ forms, Shanks and Ace)

2nd: May.10 2016 (19:00) - May.17 2016 (18:59) PST

During the 2nd event no other characters were affected by the rate up due to this event, through it coincided with the rate up for all QCK characters.

3rd: June.15 2017 (19:00) - June.19 2016 (18:59) PST

3rd even corresponded with rate up for Straw Hats, meaning that Luffy had a likely higher chance. Still no Kid Law